Mapping the solar potential

"Google has long stated its ambitions to run its global operations solely on renewable energy, and now it wants to lead by example. The company has updated its interactive Sunroof map that helps people estimate whether it makes sense to install a solar panel on their roof." 

from: https://thenextweb.com/google/2017/03/16/google-sun-map-solar-panel/

and:

https://blog.google/products/maps/shedding-light-solar-potential-all-50-us-states/